﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace BO
{
    partial class Billing
    {
     

        void Billing_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
        {
            
        }
        public override void Clear()
        {
            this.LastModifyTime=
            this.CreateTime = DateTime.Now;
           
        }

        
    }
}
